Lambertini has been a guest conductor of the Mikkeli City Orchestra (Finland). He has guest conducted the Prague Symphony, the Lithuanian State Symphony, the Tallinn Philharmonic Orchestra, the Sofia Philharmonic Orchestra, the I Pomeriggi Musicali Symphony Orchestra, the Sanremo Symphony Orchestra, the Symphony Orchestra of the Province of Bari, the Orchestra of the Olympic Theater of Vicenza and many others.
He has been invited by the some of the most important Italian and foreign institutions and theaters in the USA, Canada, Czech Republic, Brazil, Chile, Russia, Finland, Lithuania, Latvia, Estonia, Georgia, Portugal, France, Switzerland, Austria, Sweden, Egypt, Germany, Holland, Spain, Malta, Cyprus, Luxembourg, Saudi Arabia, Lebanon, Turkey and Slovenia.
He has recorded for the national public broadcasting company of Italy and other countries, and for recording companies in several foreign cities, including New York and Tokyo.
Lambertini and his family currently live in Trentino, where he teaches piano at the Bonporti Conservatory of Music in Trento. He is the general director and permanent faculty of the Belcanto Academy of Trentino. The family has a second home in Finland, where Lambertini continues to work as assistant artistic director and répétiteur of the Belcanto Academy of Finland.
Massimo is a very knowledgeable, well respected and experienced teacher. Yet he has the ability to create a warm and friendly atmosphere in the classroom. In addition to singers and répétiteur students, he also welcomes conducting students.